matplotlib - Python ViolinPlots -


i'm trying make violin plot this data set.

i want x axis first column (time) in total seconds. , left half of violin askbidavg while right half grpavg there different method using hue because examples saw takes column has 2 unique values. have many different values in there. causing problem. using 1 minute increments calculate total seconds(). either in seaborn or matplotlib. current code i'm using is:

sns.violinplot(x="time",hue=["askbidavg", "grpavg"] ,inner ="quartiles" , linewidth= 1,split=true , data=df )

however, throws error hue cannot more 2 values.

in order plot want, need perform little transform of data.

you have time column - 1 fine second column should hold y values (it have of number values) there should column tells whether askbidavg, or grpavg

    time    variable    value 0   18000   askbidavg   -0.000019 1   18000   askbidavg   -0.000024 2   18000   askbidavg   0.000019 ...     ...     ...     ... 76  18004   grpavg  -0.000019 77  18005   grpavg  -0.000005 78  18005   grpavg  -0.000012 79  18005   grpavg  0.000002

pandas has nice function can you.

import pandas pd df = pd.read_csv("/users/james.natale/downloads/yourdata.csv",index_col=false,header=0) df = pd.melt(df, id_vars=['time'], value_vars=['askbidavg', 'grpavg'])  import seaborn sns sns.set(style="whitegrid", palette="pastel", color_codes=true)  # draw nested violinplot , split violins easier comparison sns.violinplot(x=df['time'], y=df['value'], hue=df['variable'], split=true,                inner="quart") sns.despine(left=true)

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